Fitness costs of mobilised colistin resistance gene 3 (mcr-3): systematic review, epidemiological study, and functional analysis Authors Lingxuan Lyu Lujie Liang (ORCID: https://orcid.org/0000-0002-1659-0493) Hui Zhao (ORCID: https://orcid.org/0000-0001-8160-6415) Fang Bai (ORCID: https://orcid.org/0000-0003-1468-5568) Zhe Hu (ORCID: https://orcid.org/0000-0002-6864-2099) Lan‐Lan Zhong (ORCID: https://orcid.org/0009-0005-3311-5829) Dianrong Zhou Guo‐Bao Tian (ORCID: https://orcid.org/0000-0001-6750-5482) Jia Wan (ORCID: https://orcid.org/0000-0002-2042-4244) Guannan Wang (ORCID: https://orcid.org/0000-0001-5277-1921) Jiachen Li (ORCID: https://orcid.org/0000-0001-9054-1975) Yaxin Li (ORCID: https://orcid.org/0000-0003-0249-7148) Lin Wang (ORCID: https://orcid.org/0000-0003-2482-7638) Shun Xiong Lin Xu (ORCID: https://orcid.org/0000-0002-9988-9799) Yaxuan Wang (ORCID: https://orcid.org/0000-0002-0996-096X) Min Dai (ORCID: https://orcid.org/0000-0002-4988-9002) Siyuan Feng (ORCID: https://orcid.org/0000-0003-1164-9959) Meisong Li Li-Zhen Luo Meiting Yang Wenli Wang Yihao Zhang (ORCID: https://orcid.org/0009-0008-6965-1975) Institutions South China Agricultural University (CN) Sun Yat-sen University (CN) Chengdu Medical College (CN) ShanghaiTech University (CN) Third Affiliated Hospital of Guangzhou Medical University (CN) The First Affiliated Hospital, Sun Yat-sen University (CN) Guangdong Academy of Medical Sciences (CN) Nagoya University (JP) Guangzhou Medical University (CN) Explore the Global Research Space Interactive Map